Mariah Carey Nipple: Singer Flashes Some Boob At Concert (PHOTOS)

But over the weekend, Mariah Carey caused a bit of a stir when a white frock she was wearing slipped a little bit below an acceptable line, exposing her nipple. The fashion faux pas happened at the 20th anniversary concert for hip-hop label So So Def in Atlanta.

Outside of the wee wardrobe malfunction, we have to say the 42-year-old singer and 'American Idol' judge looked phenomenal. At least she can take comfort in the fact nip slips are a common occurrence for on-stage performers.